Change default avalon target temperature to 50 degrees.

driver-avalon.h

@@ -25,7 +25,7 @@
 #define AVALON_FAN_FACTOR 120
 #define AVALON_DEFAULT_FAN_MAX_PWM 0xA0 /* 100% */
 #define AVALON_DEFAULT_FAN_MIN_PWM 0x20 /*  20% */
-#define AVALON_TEMP_TARGET 45
+#define AVALON_TEMP_TARGET 50
 #define AVALON_TEMP_HYSTERESIS 3
 
 #define AVALON_DEFAULT_TIMEOUT 0x2D